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HP ProBook: sudden freeze and fan high

post #1 of 7
Thread Starter 
Just bought an HP ProBook 4421s and did a clean format to XP.

Issue: during daily usage, the fan can suddenly goes very high out of nowhere and at the same time the system freezes, have to power off manually to shut it down.
The very high spinning sound makes it seems like it's working in a very maximum force. I can be sure it's not in high temp and I'm not doing anything with high processes. The freezing is random, sometimes only minutes after I turn it on, sometimes half day, sometimes when multi-tasking, sometimes just leave it on doing nothing, ...

This notebook is for office purposes. Strange thing is, it always only occurs when I use it in my office, but when I try it at home, no such issue happening. I'm at home now, been leaving the notebook on for almost a day and nothing happened until now.

Do you guys think it might has something to do with power jack in my office? Anything power-related?
I suspect there must be something to do with power, since it's only happening at my office and not in my home.

I have tried several possible ways, but to no avail.
Clean reformat, update every drivers from HP website, down/upgrade BIOS, running with/without battery, etc...
post #2 of 7
How is the notebook positioned at your office? It sounds to me like there may be a vent blocked or something like that.
post #3 of 7
Thread Starter 
Quote:
Originally Posted by Djembe View Post
How is the notebook positioned at your office? It sounds to me like there may be a vent blocked or something like that.
At the office, it is placed on a standard wood desk, nothing else around it.
At home it's even worse, I place it on top of my other notebook.

Temperature for both places are cool.
post #4 of 7
What about network connection? Are you connected at work and at home? If so what is the configuration at both places?

cheers ...
post #5 of 7
Thread Starter 
Quote:
Originally Posted by qhn View Post
What about network connection? Are you connected at work and at home? If so what is the configuration at both places?

cheers ...
Both using LAN connections and default settings, no particular configurations. Only that in the office I connect through company's proxy which I don't think it matters.
post #6 of 7
I take it that you use the same AC Adapter and power cord, so yes, your suspicion of the power outlet is feasible, if providing that when on battery you have no issue at home and at work.

cheers ...
post #7 of 7
Can also be a program you run at work and not at home...?
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